Bornoz



(No Model.)

MAOHINB FOR PROIEELLING VESSELS. No. 474,939; Patented May 17, 1892.

UNITED STATES PATENT OFFICE.-

ISAAO CARRILLO DE 'ALBORNOZ, OF NEIV YORK, N. Y;

MACHINE FOR PROPELLING VESSELS.

SPECIFICATION forming part of Letters Patent No. 474,939, dated May 17,1892. Application filed September 17,1891. Serial No. 406,023. (Nomodel.)

To all whom it may concern.-

Be it known that I, ISAAC OARRILLO DE AL- BORNOZ, of the city, county,and State of New York, have invented anew and useful Machine forPropelling Boats, of which the following is a specification.

In the accompanying drawings, illustrating my improvement, Figure 1 is aside view of my machine in'position in the vessel. Figs. 2 and 3 aredetailed views of the piston-head. Fig. 4 is a modified form ofoutlet-valve. Fig. 5 is an endelevation of the inner or closed end ofthe cylinder. Fig. 6 is a sectional elevation of one of the air pipesandvalves. Fig. 7 is a plan view of the air-valve; and Fig. 8 is asectional view of the inner end of the inletwater-pipe, showing thevalve in the same.

My invention'relates to that class of propelling devices for vessels inwhich water is forced from the vessel in a direction opposed to that inwhich the latteris to be moved; and it consists of various improvementsin the cylinder from which the water is forced and in the mechanismconnected with the same.

1 is a longitudinal cylinder situated in the construction shown in thedrawings in the stern of the vessel and near the bottom of the same, andopening at its rear or outer end 2 through the vessel directly into thewater surrounding the latter. The inner end 3 of the cylinder is closedand is provided with openings for the piston-rod and the rod 5 on thepiston and for the pipe 14. On top of the cylinder are pipes 8 8,provided with downwardly-opening valves 11 11, through which air passesinto and out of the cylinder. These valves (shown more at large in Fig.7) are provided on the under side with boxes or floats by which thevalves are closed and held up against their seat 17 by the action of thewater entering the cylinder. .When not held up and closed by the water,the valves drop .down and open and are supported by the heads on thestems 16 from the bars 15. As shown, the pipes 8 and the opening of thevalves are large, so that the air can pass quickly in and out of thecylinder. In the bottom of the cylinder is the water-inlet pipe 6, whichpasses through the bottom of the vessel and opens out directly into thewater and by which water enters intothe cylinder. This pipe is closed byan upwardly-opening valve 7, (shown more fully in Fig. 8,) which is helddown on its seat bya rod 5 on the piston 20, as hereinafter described.Within the cylinder is the piston 20, moved back and forth by apiston-rod 21, connected by means of the wheels 12 or any other suitablemeans with the engine. The piston, as is shown in Fig. 2, is providedwith two valves 4 4, which allow the air to pass through the piston andprevent suction, and has at the top a prolongation 9, which, being roundand fitting the interior of the cylinder, closesthe openings into theairpipes as the piston passes under them, and thus prevents the waterwhen being driven by the piston from going over and around the t p ofthe piston to the back of the same. At the bottom of the piston is a rod5, which extends back from the piston and over the valves 7 in the pipe6 and serves to hold the latter down on its seat until the piston isdrawn back of the valve toward the closed end 3 of the cylinder. Thisrod 5 passes out of the cylinder, as the piston moves back, through anopening 2A in the end 3, as is shown in Fig. 5. In the forward or openend of the cylinder next to the vessel is a valve 10, controlled by therod 13, worked by an eccentric on the engine, which is so timed that thevalve is opened just before the piston commences its forward movementfrom the closed end toward the valve and is closed the moment the pistoncommences its backward movement. The opening of this valve 10 is equalto the inner diameterof thecylinder, so that the water from the cylindercan be expelled through the valve without hinderance. Below the cylinderis a pipe 14, communicating with the interior of the cylinder at therear through the closed end 3 and at a point 21 near the valve 10. Thispipe is intended to assist in conveying any water that may be in theback end of the cylinder behind the piston to the part of the cylinderin front of the piston. A valve in the pipe at 22 prevents the passageof the water in the opposite direction.

The operation of my invention is as follows: I will suppose the piston20 to be at the end of its forward stroke and to have just expelled thewater from the cylinder. Before ton open,allowing the air to flowthrough the piston, thus preventing any suction against the valve 10.*After the piston has gone forward some quantity of water remains in thecylinder coming from the air-pipes; but as the piston is provided withthe valves 4 when it recedes apart of this water passes through valve10.

them and the remainder is pushed by .the piston into pipe 14: andreturns to thecylinder at I 21. As the piston reaches the end of itsbackstroke the eccentric connected to the bar 13 opens the valve 10. Atthe same time the piston passes over and back of the valve in the pipe6, when the latter, no longer held down by the rod 5 on the piston, isat once opened by the pressureof the water outside, and the waterquickly enters through the valvelO and the pipe 6 and fills thecylinder. As the water enters the cylinder it drives'the air out throughthe pipes 8 until the water, filling the cylinder and the bottom of thepipes, raises the valves 11 and presses them against their valve-seats17, thus closing the air-pipes and preventing the escape of the waterthrough them. The cylinder now being filled with water the piston startson its forward stroke and, moving with rapidity, expels the water out ofthe cylinder and through the opening in the stern of the vessel, thusdriving the vessel in the opposite direction. ton passes over thevalve-7 in the pipe 6 it closes the latter down, and thus prevents theingress of any more water. The piston having expelled all the water, thevalvelO is closed, the piston recedes, and the operation is repeated asbefore.

In Fig. 4 is shown another form of outlet- This valve is curved and isopened and closed by a rack 25 and pinion 26, moved by the eccentric asbefore.

In myimprovement,on accountof thelarge air pipes and valves 11, the airenters the cylinder quickly as the Water is expelled, and thus when notfilled with water the cylinder is always full of air, and all suctionagainst the piston as it moves in either direction is avoided.

My machine may be located at the stern of the boat, as in theillustration, and one or more cylinders may be used, or a cylinder maybe placed on each side of the boat, so as to open rearwardly or towardthe stern.

What I claim is 1. The combination, in a boat-propelling machine, of acylinder open at one end, a valve at the open end thereof, and means bywhich the valve is opened and closed as the As the pispiston advancesand recedes, an air-pipe provided with a valve by which air enters andleaves the cylinder, and a piston adapted to move back and forth in thecylinder, substantially as described.

2. The combination, in a boat-propelling machine, of a cylinder open atone end, a

valve at the open end thereof, and means whereby the valve is opened andclosed as the piston advances and recedes, an air-pipe on the cylinderprovided with a valve actuated by the rise and fall of the water in thecylinder, and a piston arranged to move back and. forth in the cylinder,substantially as described.

3. The combination, in a boat-propelling I machine, of a cylinder openat one end, a valve at the open end thereof, and means whereby thevalveis opened and elosedas the piston advances and recedes, an air-pipeon the cylinder, provided with a valve actuated by the rise and fall ofthe Water in the cylinder, and, a piston arranged to move back and forthin the cylinder and providedwith valves whereby the air can pass throughthe piston, substantially as described.

at. The combination, in a boat-propelling machine, of a cylinder open atone end, a valve at the open end thereof, and means whereby the valve isopen-ed and closed as the piston advances and recedes, an air-pipe onthe cylinder, provided with a valve actuated by the rise and fallofthewater in the cylinder, an inlet-pipe in the cylinder communicatingwith the water outside of the vessel and having an upwardly-openingvalve and a piston arranged to move back and forth in the cylinder,provided with a valve whereby the air can pass through the piston andhav ing a rearwardly-projecting shield by which the mouth of theair-pipe is closed as the piston passes under the same, and arearwardlyprojecting rod adapted to pass over and hold down the valve inthe inlet-pipe, substantially as described.

5. The combination, in a boat -p,ropelling machine, of a cylinder openat one end, a valve at the open end thereof, and means whereby the valveis opened and closed, aseries of air-pipes arranged longitudinally onthe cylinder and provided with valves actuated by the rise and fall ofthe water in the cylinder, and a piston arranged to move back and forthin the cylinder, substantiallv as described.

6. The combination, in a boatpropelling machine, of a cylinder open atone end, a piston therein, said cylinderbeing provided with 7. Thecombination, in a boat5propelling machine, of a cylinder open at oneend, a piston therein, said cylinder being provided with an air-openingpassed by the piston on its stroke in each direction, a valve in saidopening, and means whereby said valve is opened for the return strokeand closed for the ad- Vance stroke, substantially as described.

Signed at the cityof New York, in the county of New York and State ofNew York, this 16th day of September, A. D. 1891.

ISAAC CARRILLO DE ALBORNOZ.

Witnesses:

SAML. S. CAMPBELL, S. L. BENNETT.

